CN101463894A - Assembled internal gear - Google Patents
Assembled internal gear Download PDFInfo
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- CN101463894A CN101463894A CNA2009101030287A CN200910103028A CN101463894A CN 101463894 A CN101463894 A CN 101463894A CN A2009101030287 A CNA2009101030287 A CN A2009101030287A CN 200910103028 A CN200910103028 A CN 200910103028A CN 101463894 A CN101463894 A CN 101463894A
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- gear
- internal gear
- gear teeth
- tooth
- wheel body
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Abstract
The invention discloses an assembled internal gear, comprising a ring gear mass and a gear tooth unit comprising at least one gear tooth; the gear tooth unit is arranged at the inner side of the ring gear body along the circumference in parallel, so as to form an internal gear. In the invention, the internal gear adopts an assemblable structure, and the fabrication procedure of the gear tooth is good, so that processing of a hard tooth surface and the high precision internal gear can be completed by a simple technique, thus improving the bearing capacity of a transmission mechanism, reducing vibration and noise and prolonging the service life of a gearing mesh auxiliary; in addition, the assembled internal gear of the invention is especially suitable for the transmission mechanism with a requirement of high precision on the internal gear; moreover, with the application range unrestricted, the assembled internal gear is suitable for gears of any shapes such as involute gear, a circular tooth gear, a straight tooth and a helical tooth and the like and is suitable for common inner gearing transmission, common planetary gearing transmission and planetary transmission with small teeth difference.
Description
Technical field
The present invention relates to a kind of internal gear, particularly a kind of assembled internal gear.
Background technique
The planetary pinion transmission is compared with the ordinary gear transmission, have that volume is little, quality is little, compact structure, bearing capacity is big, transmission efficiency is high and velocity ratio is bigger advantage, simultaneously, planetary pinion can carry out power dividing when transferring power, and its input shaft and output shaft have alignment.Therefore, the planetary pinion transmission is used to replace the ordinary gear transmission, and as the retarder in the various machine driven systems, speed increaser and speed change gear; Especially the gear drive that cube is little, quality is little for wanting, compact structure and transmission efficiency are high and need to be widely used especially in the gear drive of differential mechanism.
The inside engaged gear transmission is planetary necessary engagement system, and one of planetary pinion transmission key technology is the especially precision machining of internal gear of gear.And along with the high speed development of science and technology, more and more higher for the standardization of internal gear, the hard flank of tooth, high-precision requirement.
In the prior art, because the restriction in space, methods such as internal gear processing is usually adopted gear shaping, drawn tooth, moulding, be difficult to realize the highi degree of accuracy and the hard flank of tooth, cause interior engagement driving (mainly being Gear Planet Transmission) vibration, noise, additional dynamic load etc., reduce its bearing capacity, life-span and reliability, therefore limited planetary development and application greatly.
Therefore, need a kind of internal gear, technology capability is good, uses simple technology and just can finish the hard flank of tooth and the processing of high-precision internal gear, thereby improve the bearing capacity of transmission device, reduces vibration and noise, prolongs the working life of gear engagement pair.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of assembled internal gear, technology capability is good, use simple technology and just can finish the hard flank of tooth and the processing of high-precision internal gear, thereby improve the bearing capacity of transmission device, reduce vibration and noise, prolong the working life of gear engagement pair.
Assembled internal gear of the present invention comprises annular tooth wheel body and the gear teeth unit that is made of gear teeth at least, and described gear teeth unit is set up in parallel at the inboard formation of annular tooth wheel body internal gear along circumference.
Further, described annular tooth wheel body inboard is provided with circular groove along circumference, and described gear teeth unit is arranged in the circular groove, and each gear teeth unit is by at least one axial restraint pin or be bolted in the circular groove;
Further, described ring gear axon is provided with back-up ring respectively to two ends, and described circular groove is made of annular tooth wheel body and back-up ring;
Further, described each gear teeth unit is arranged in the circular groove by at least two fixing pin or bolt along circumference and column distribution;
Further, described annular tooth wheel body inboard is provided with telescoping groove along circumference, and the outside, gear teeth unit fixedly installs mosaic process, and the mosaic process of described gear teeth unit is entrenched in and constitutes internal gear in the telescoping groove;
Further, the axial end sealing of described telescoping groove, an end fixedly installs back-up ring; Perhaps, telescoping groove axially connects, and axially two ends fixedly install back-up ring respectively;
Further, described annular tooth wheel body is provided with radial hole along circumference, and gear teeth unit arranged outside stud bump, the stud bump of described gear teeth unit are inserted and constituted internal gear in the radial hole;
Further, described gear teeth unit is made of gear teeth.
The invention has the beneficial effects as follows: assembled internal gear of the present invention, adopt assemblnig structure, gear teeth technology capability is good, use simple technology and just can finish the hard flank of tooth and the processing of high-precision internal gear, thereby improve the bearing capacity of transmission device, reduce vibration and noise, prolong the working life of gear engagement pair, be specially adapted to the high-precision transmission device of internal tooth requirement; The present invention is applicable to involute gear, circular tooth gear, the gear of any profiles of tooth such as straight-tooth and helical teeth, and be applicable to common interior engagement driving, and also can be applicable to common planetary pinion transmission or planetary drive with small teeth difference, application area is unrestricted.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 be Fig. 1 along A-A to sectional view;
Fig. 3 is the gear teeth modular construction schematic representation of the embodiment of the invention one;
Fig. 4 is the structural representation of the embodiment of the invention two;
Fig. 5 is the gear teeth modular construction schematic representation of the embodiment of the invention two;
Fig. 6 is the generalized section of the embodiment of the invention two;
Fig. 7 is the structural representation of the embodiment of the invention three;
Fig. 8 is the gear teeth modular construction schematic representation of the embodiment of the invention three.
Embodiment
Embodiment one
Fig. 1 is the structural representation of the embodiment of the invention one, Fig. 2 be Fig. 1 along A-A to sectional view, Fig. 3 is the gear teeth modular construction schematic representation of the embodiment of the invention one, as shown in the figure: the assembled internal gear of present embodiment, comprise annular tooth wheel body 1 and the gear teeth unit 2 that is made of gear teeth, annular tooth wheel body 1 inboard is provided with circular groove 11 along circumference;
Annular tooth wheel body 1 axial two ends are provided with back-up ring 11a respectively, circular groove 11 is made of annular tooth wheel body 1 and back-up ring 11a, each gear teeth unit 2 is fixed in the circular groove 11 by an axial restraint pin 3, and a plurality of gear teeth unit 2 constitutes internal gear along the circular groove 11 that circumference is fixedly installed on annular tooth wheel body 1 inboard side by side;
Certainly, each gear teeth unit 1 also can be fixedly installed in the circular groove 11 by at least two fixing pins 3 along circumference and column distribution, makes each gear teeth unit from radially still axially all assembling is firm, and the internal gear transmission is stable; Link also is not limited to fixing pin 3, also can be bolt, can both reach goal of the invention; Gear teeth unit 2 also is not limited to by gear teeth and constitutes, and also can be a plurality of, as long as make things convenient for processing and fabricating, does not break away from aim of the present invention, and simultaneously, several gear teeth one constitute gear teeth unit, also is beneficial to the stable of structure.
Embodiment two
Fig. 4 is the structural representation of the embodiment of the invention two, Fig. 5 is the gear teeth modular construction schematic representation of the embodiment of the invention two, Fig. 6 is the generalized section of the embodiment of the invention two, as shown in the figure: the assembled internal gear of present embodiment, comprise annular tooth wheel body 1 and the gear teeth unit 2 that constitutes by gear teeth, annular tooth wheel body 1 inboard is provided with a plurality of telescoping groove 1a along circumference, each 2 outside, gear teeth unit fixedly installs mosaic process 21, and the mosaic process 21 of a plurality of gear teeth unit 2 correspondence one by one is entrenched in formation internal gear in the telescoping groove 1a;
In the present embodiment, telescoping groove 1a axially connects, and axially two ends fixedly install back-up ring 12 respectively, guarantees the axially locating of gear teeth unit 2, thereby guarantees the stability of inner gear structure;
Certainly, telescoping groove 1a also can be axial end sealing, and an end fixedly installs the structure of back-up ring 12, and the internal gear after the assembling can be more stable.
Embodiment three
Fig. 7 is the structural representation of the embodiment of the invention three, Fig. 8 is the gear teeth modular construction schematic representation of the embodiment of the invention three, as shown in the figure: the assembled internal gear of present embodiment, comprise annular tooth wheel body 1 and a plurality of gear teeth unit 2 that constitutes by gear teeth, annular tooth wheel body 1 is provided with a plurality of radial hole 1b along circumference, corresponding one by one insertion of each gear teeth unit 2 arranged outside stud bump 22, the stud bump 22 of gear teeth unit 2 constitutes internal gear in the radial hole 1b; This is simple in structure, is easy to processing, and is easy to assembly.
Structure among the above embodiment is applicable to involute gear, circular tooth gear, the gear of any profiles of tooth such as straight-tooth and helical teeth, and be applicable to common interior engagement driving, and also can be applicable to common planetary pinion transmission or planetary drive with small teeth difference, application area is unrestricted.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. assembled internal gear is characterized in that: comprise annular tooth wheel body (1) and the gear teeth unit (2) that is made of gear teeth at least, described gear teeth unit (2) is set up in parallel in that annular tooth wheel body (1) is inboard along circumference and constitutes internal gear.
2. assembled internal gear according to claim 1, it is characterized in that: described annular tooth wheel body (1) is inboard to be provided with circular groove (11) along circumference, described gear teeth unit (2) is arranged in the circular groove, and each gear teeth unit (2) is by at least one axial restraint pin (3) or be bolted in the circular groove (11).
3. assembled internal gear according to claim 2 is characterized in that: described annular tooth wheel body (1) axially is provided with back-up ring (11a) respectively in two ends, and described circular groove (11) is made of annular tooth wheel body (1) and back-up ring (11a).
4. assembled internal gear according to claim 3 is characterized in that: described each gear teeth unit (1) is arranged in the circular groove (11) by at least two fixing pins along circumference and column distribution (3) or bolt.
5. assembled internal gear according to claim 1, it is characterized in that: described annular tooth wheel body (1) is inboard to be provided with telescoping groove (1a) along circumference, the outside, gear teeth unit (2) fixedly installs mosaic process (21), and the mosaic process (21) of described gear teeth unit (2) is entrenched in and constitutes internal gear in the telescoping groove (1a).
6. assembled internal gear according to claim 5 is characterized in that: the axial end sealing of described telescoping groove (1a), and an end fixedly installs back-up ring (12); Perhaps, telescoping groove (1a) axially connects, and axially two ends fixedly install back-up ring (12) respectively.
7. assembled internal gear according to claim 1, it is characterized in that: described annular tooth wheel body (1) is provided with radial hole (1b) along circumference, gear teeth unit (2) arranged outside stud bump (22), the stud bump (22) of described gear teeth unit (2) are inserted and are constituted internal gear in the radial hole (1b).
8. assembled internal gear according to claim 6 is characterized in that: described gear teeth unit (2) is made of gear teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101030287A CN101463894A (en) | 2009-01-08 | 2009-01-08 | Assembled internal gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101030287A CN101463894A (en) | 2009-01-08 | 2009-01-08 | Assembled internal gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101463894A true CN101463894A (en) | 2009-06-24 |
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ID=40804612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101030287A Pending CN101463894A (en) | 2009-01-08 | 2009-01-08 | Assembled internal gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101463894A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883704A (en) * | 2014-03-31 | 2014-06-25 | 无锡金阳电机有限公司 | Internal gear used for gear-reduction starter |
| CN104595459A (en) * | 2015-02-09 | 2015-05-06 | 盐城工学院 | Composite gear with addendum modification |
| CN108351014A (en) * | 2015-10-16 | 2018-07-31 | 赛峰传输系统 | Ring gear for epicyclic reduction gear |
-
2009
- 2009-01-08 CN CNA2009101030287A patent/CN101463894A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883704A (en) * | 2014-03-31 | 2014-06-25 | 无锡金阳电机有限公司 | Internal gear used for gear-reduction starter |
| CN104595459A (en) * | 2015-02-09 | 2015-05-06 | 盐城工学院 | Composite gear with addendum modification |
| CN104595459B (en) * | 2015-02-09 | 2017-03-29 | 盐城工学院 | A kind of composite deflection gear |
| CN108351014A (en) * | 2015-10-16 | 2018-07-31 | 赛峰传输系统 | Ring gear for epicyclic reduction gear |
| CN108351014B (en) * | 2015-10-16 | 2021-06-08 | 赛峰传输系统 | Ring gear for an epicyclic reduction gear |
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Open date: 20090624 |